I have done similar style kit on my car with a IHI roller bearing turbo, at 13PSI i have an awesome power upgrade, the motor and gearbox with turbo are for sale if your interested, but as far as the kits are concerned, i have found generally they are very well overpriced. and to turbo your car, you need an engineer certificate and EPA tested which costs $2500-$3500 depending on who you go to. GRA don't provide these i have spoken to them about it. I am selling my motor because i got a unroadworthy sticker stuck on my car because of the turbo not having an engineer certificate, and now i figure i may as well just wreck the car sell everything off it and get another car, i have spent to much money on it already. So if your not worried about getting it done legally, then sure you will get a small power increase from the TSA kit.